the full senate is expected to vote on hagel when it reconvenes next week. >> all right. kristen welker tonight. thank you. >>> as you just heard, one of the big issues in the immigration debate is border security. despite progress claimed by the federal government, nbc's mark potter found that for some americans who live near mexico, the border is anything but secure. >> reporter: in the rugged terrain south of tucson, arizona, advocates concerned about u.s. border security took matters into their own hands and placed motion-sensitive hidden cameras on known smuggling trails and this is their video, revealing wave after wave of mexican drug and immigrant smugglers, some of them heavily armed, who cross the border and travel miles north inside the united states. >> you got a trail coming in. >> reporter: it's why rancher david beckham made the painful decision to move his family off his land, 12 miles north of the mexican border, because of all the armed smugglers crossing his property, threatening his home. >> it was unsafe. i couldn't -- i couldn't see raising our child